The couples who exchanged vows in May 2004 helped usher in a period of profound change, leading to the U.S. Supreme Court ruling that same-sex marriage is a constitutional right.

Adam Liptak describes the moment in which same-sex marriage became legal nationwide on June 26, 2015 — and what the future may hold for the Supreme Court’s ruling.

The couples who exchanged vows in May 2004 helped usher in a period of profound change, leading to the U.S. Supreme Court ruling that same-sex marriage is a constitutional right.